0124-2023-08-16.md

16 Aug 2023

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More raybox-zero

Notes

• Started transferring stuff from the Raybox tracer into wall_tracer and recalling how it worked, writing some improved notes, and looking for places to optimise.
• Need to try and understand my own rayAddend (rayAddendX and rayAddendY) better, from the original Raybox, and in particular the use of >>>8 (÷256) versus any other value, and how it compares with the half-height multiplier (e.g. ×240).

Next steps

• Get more of the original Raybox tracer transferred over.
• Implement map -- internal ROM initially; external memory access option later?
• Make sure tracer works with our slightly different frame/row-based inputs/outputs.